In the early stage of anal fistula patients will appear perianal pus, perianal pain, perianal itching and other symptoms. 1. perianal pus: the patient’s perianal fistula external mouth will appear a small amount of purulent, bloody, mucous secretion, there is a large high anal fistula, due to the fistula is located outside the sphincter, uncontrolled, there will be feces and gas discharge. 2. Perianal pain: when the patient’s external mouth healing, fistula abscess formation, will feel pain, accompanied by chills, fatigue, fever and other systemic symptoms, in the abscess puncture or incision and drainage, the symptoms can be relieved. 3. Perianal itching: due to the stimulation of secretions, resulting in perianal itching, moist, thus forming eczema. It is recommended that patients with anal fistula go to the hospital in a timely manner, under the diagnosis of the doctor, according to the specific performance of the condition, to take targeted treatment, life should be reduced activities, to promote the recovery of the disease.